Three angles of a quadrilateral are equal. If the fourth angle is 69°; find the measure of equal angles.
Let each equal angle be x°
x + x + x + 69° = 360°
3x = 360°- 69
3x = 291
x = 97°
Each, equal angle = 97°
Concept: Concept of Quadrilaterals - Sides, Adjacent Sides, Opposite Sides, Angle, Adjacent Angles and Opposite Angles
Is there an error in this question or solution?